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Class 324/400 - Spark plug removed or tested in a test fixture


Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter wherein the spark plug is removed from the
No. of patents: 6
Last issue date: 10/31/2006


NumberTitleIssue Date
7129705Ignition spark tester
A device for testing the functioning in an internal combustion engine of spark plugs which are recessed within the cylinder head. Connection to the recessed spark plugs can be accomplished by an elongated device shaped to fit within and extend beyond the spark plug ...
10/31/2006
6909286Method of inspecting insulators to detect defects including measuring leakage current flowing through the insulator
A method of inspecting insulators such as spark plug insulators for defects, whereby a plurality of insulators are inspected concurrently by being disposed with a plurality of first electrodes engaged in respective apertures in the insulators, and with apertures for...
06/21/2005
5426369Spark plug testing apparatus
A new and improved spark plug testing apparatus is in the form of an electrically conductive, metallic spring clip and includes a pair of first electrically conductive contact portions for contacting an electrically conductive externally threaded portion ...
06/20/1995
4746868Spark plug and wire testing unit
A metal plate is mounted on the engine head in electrical conductive relation. An electrode test unit is mounted on the metal plate, having a pair of electrodes forming a spark gap, one contacting the plate and the others adapted for securement thereto of...
05/24/1988
4490677Ignition coil testing means
According to the preferred embodiment illustrated herein, the invention comprises a platform of insulating material to which a spring clip is fixed, in order that the platform can be slidably secured to the upstanding side wall of an ignition distributor ...
12/25/1984
4032842Spark plug tester ignition system
An improved high voltage pulse power supply for a spark plug test fixture. AC line voltage is applied through a voltage step-down transformer, a half wave rectifier and an electronic switch to the primary winding of a conventional ignition coil. During th...
06/28/1977
 
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